Have the same problem.. :-(

I have same proble and i fix it) Go to game folder and run Saboteur.exe as administrator (Right-click on a exe-file or shortcut file (if you create it) > Shortcut tab > Advanced > Check the box to "Run as administrator").

Anyone ever figure this out? Mouse does not work at all, tried running as administrator mouse still does not work.

I had same problem, and I fixed it.

I think this problem related to incorrect deletion of the orign version.
inadvertently I installed the gog galaxy game in the same path as the origin

The way to fix the problem:
1) Uninstall the game
2) Install the game from Origin
3) Uninstall it again
4) Install again from Origin

After the last step I had working mouse.

5) I think we can uninstall the game from Origin and Install Gog version.

Maybe Im late to the party, I had same problem. I fixed it by unnistalling any virtual HID driver or virtual mouse driver.

I probably installed it with mouse program and unnistaling it in windows hardware center ultimately fix this problem.

This driver can be variable, so I cannot tell exactly what it was. I dont know too.